firebot (sometimes firewolfbot) is a common fixture of Mozilla IRC
channels. He spits out information about bugs in Bugzilla. Just include the
word bug followed by a space and a number (e.g. bug12345, bug624323) and firebot will post some info about the bug and a link to
Bugzilla in the channel.

firebot is also an InfoBot and does a lot of generic MozBot-type stuff.

kitsunebot is a jig bot that acts as a
bridge between Github and Jenkins. (Yes, Github can trigger Jenkins builds
itself. No, it doesn’t do it very well.) So far, she is very quiet, but we’d
like to make her more useful.

kitsunebot filters commits by branch and triggers the correct Jenkins
build. She also announces changes in IRC, but only shows the full list of
changes committed for certain branches.